124740121 has 8 divisors (see below), whose sum is σ = 136353600. Its totient is φ = 113172240.

The previous prime is 124740097. The next prime is 124740127. The reversal of 124740121 is 121047421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124740121 - 2⁹ = 124739609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124740092 and 124740101.

It is not an unprimeable number, because it can be changed into a prime (124740127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5541 + ... + 16738.

It is an arithmetic number, because the mean of its divisors is an integer number (17044200).

Almost surely, 2^124740121 is an apocalyptic number.

124740121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124740121 is a deficient number, since it is larger than the sum of its proper divisors (11613479).

124740121 is a wasteful number, since it uses less digits than its factorization.

124740121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22799.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 124740121 is about 11168.7116983115. The cubic root of 124740121 is about 499.6532542570.

Adding to 124740121 its reverse (121047421), we get a palindrome (245787542).

The spelling of 124740121 in words is "one hundred twenty-four million, seven hundred forty thousand, one hundred twenty-one".